If I am in space in a space suit and assuming I have plenty of oxygen, can I float/fall back to earth.?

Question

Also assuming I have a parachute or jet pack and my trajectory is correct at the start. What would I need to do this?

Answer 1

First you are initially traveling 17,500 miles per hour, in order to obit the earth.
to fall back to earth you need to slow down.
to do this you'll require a rocket pack, or a chemical thruster, to slow your speed.
now you are falling back to earth. gravity takes over.
with just a space suite, you would enter the upper atmosphere, very little air, not enough air for chutes, the air molecules would bounce off you creating friction, and a lot of heat (remember you are traveling at 17,000 M/hr. chutes only good under 200 miles per hour. you need to slow down, either friction of the air (you would disintegrate, vaporize due to heat) as for a jet pack not enough air, rocket pack, you'll need a couple of tons of fuel to slow you down, and keep your speed down, it's not like a moon landing they did not have an atmosphere to contend with.

Answer 2

Sure, you can. Don't know what all these people are talking about.
Depending on what you mean by "trajectory is correct at the start", you may not need to do anything at all - just continue following your "correct trajectory", and you'll bump into Earth eventually.

If the trajectory is not all that "correct" after all, you can always change it by emiting oxygen streams (you said, you have plenty) in appropriate directions. It might take some time, but eventually, you should be able to get on the right track (unless, you get captured into a gravitational field of another body and become a satellite - in that case, you'd need way too much oxygen and hell of a lot of pressure to be able to escape).

Answer 3

you would drift aimlessly in space till your oxygen runs out then you're dead. If you are close enough to the earth you will be drawn back to earth so fast you'll burn up like a little meteor, I dont think a parachute will help much, you'll need something to slow down your descent with alot more power than that, even a little jet pack on your back wouldnt be enough.

Answer 4

no is the answer my friend, as you would need a fair old velocity to re-enter the earths atmosphere, you would merely bounce of and float away.....however, if you before your space walk had had a good meal containing an ample amount of sprouts, washed down with several litres of cider, and had a small vent and an ignition system fitted in the rear end of your space suite, you may well regain entry into earths atmosphere, think you might want to hold your breath for a while though...

Answer 5

The ambient stress is somewhat the precedence. understand that lower than a particular stress, fluids consisting of water do no longer exist contained in the liquid section. They "boil away" and turn to vapor. at the same time as temperature ameliorations the stress at which this happens, water only can not exist as a liquid at surely 0 ambient static stress. (further: it truly is, through ways, why no water now exists on the exterior of Mars, even although the exterior temperatures sometimes upward push above 32 deg F). in the experience that your finished body changed into slowly diminished to those stress degrees, then no drinks ought to exist interior your body, and which will be an issue. the exterior will be no safe practices by evaluation, and also you'll perish fairly without delay in a touch ugly way.

Answer 6

If you were travelling at about 700 mph you.d live no bother but you'd need a jet pack the size of a space shuttle liquid fuel tank to slow you down enough.

Answer 7

Yes Captain Joseph Kittinger of the us airforce i think. jumped from a balloon at an altitude of over 100 000 feet in 1960 i think he reached a speed of over 600 mph during the fall back into the atmosphere.

Answer 8

Float!! You mean plummet to earth at speeds in excess of 500 mph.

First, you are only going to head for earth if you are in it's gravitational pull. Second you will fry to a crisp the moment you hit the atmosphere.

You will fall back to earth but mostly in dust particles!

Answer 9

You remember a little incident with the Space Shuttle Columbia? Let me refresh your memory -
They had plenty of Oxygen
They had the proper trajectory
They were equipped with parachutes
They were equipped with rocket boosters (jet packs)
They also wore space suits.

They had a hole in one of their shields and were vaporized!

You'd be vaporized long before they were. So simply put: No sir.

Answer 10

No, your speed in space would by 18,000 miles per hour.

you'd need to be able to face the wrong way and them slow yourself down. at about 17,500 you will start to drop. From then on your speed will scrub off and resistance will slow you down. You'll re-enter the earth atmoshere at 14,000 mph. From then on you're in free fall as you have no wings.

You'll die about .00005 seconds into the procedure